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-rw-r--r--_dbus_bindings/validation.c245
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diff --git a/_dbus_bindings/validation.c b/_dbus_bindings/validation.c
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+/* Implementation of various validation functions for use in dbus-python.
+ *
+ * Copyright (C) 2006 Collabora Ltd. <http://www.collabora.co.uk/>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "dbus_bindings-internal.h"
+
+dbus_bool_t
+dbus_py_validate_bus_name(const char *name,
+ dbus_bool_t may_be_unique,
+ dbus_bool_t may_be_not_unique)
+{
+ dbus_bool_t dot = FALSE;
+ dbus_bool_t unique;
+ char last;
+ const char *ptr;
+
+ if (name[0] == '\0') {
+ PyErr_SetString(PyExc_ValueError, "Invalid bus name: "
+ "may not be empty");
+ return FALSE;
+ }
+ unique = (name[0] == ':');
+ if (unique && !may_be_unique) {
+ PyErr_Format(PyExc_ValueError, "Invalid well-known bus name '%s':"
+ "only unique names may start with ':'", name);
+ return FALSE;
+ }
+ if (!unique && !may_be_not_unique) {
+ PyErr_Format(PyExc_ValueError, "Invalid unique bus name '%s': "
+ "unique names must start with ':'", name);
+ return FALSE;
+ }
+ if (strlen(name) > 255) {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': "
+ "too long (> 255 characters)", name);
+ return FALSE;
+ }
+ last = '\0';
+ for (ptr = name + (unique ? 1 : 0); *ptr; ptr++) {
+ if (*ptr == '.') {
+ dot = TRUE;
+ if (last == '.') {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': "
+ "contains substring '..'", name);
+ return FALSE;
+ }
+ else if (last == '\0') {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': "
+ "must not start with '.'", name);
+ return FALSE;
+ }
+ }
+ else if (*ptr >= '0' && *ptr <= '9') {
+ if (!unique) {
+ if (last == '.') {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': "
+ "a digit may not follow '.' except in a "
+ "unique name starting with ':'", name);
+ return FALSE;
+ }
+ else if (last == '\0') {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': "
+ "must not start with a digit", name);
+ return FALSE;
+ }
+ }
+ }
+ else if ((*ptr < 'a' || *ptr > 'z') &&
+ (*ptr < 'A' || *ptr > 'Z') && *ptr != '_' && *ptr != '-') {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': "
+ "contains invalid character '%c'", name, *ptr);
+ return FALSE;
+ }
+ last = *ptr;
+ }
+ if (last == '.') {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': must "
+ "not end with '.'", name);
+ return FALSE;
+ }
+ if (!dot) {
+ PyErr_Format(PyExc_ValueError, "Invalid bus name '%s': must "
+ "contain '.'", name);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+dbus_bool_t
+dbus_py_validate_member_name(const char *name)
+{
+ const char *ptr;
+
+ if (name[0] == '\0') {
+ PyErr_SetString(PyExc_ValueError, "Invalid member name: may not "
+ "be empty");
+ return FALSE;
+ }
+ if (strlen(name) > 255) {
+ PyErr_Format(PyExc_ValueError, "Invalid member name '%s': "
+ "too long (> 255 characters)", name);
+ return FALSE;
+ }
+ for (ptr = name; *ptr; ptr++) {
+ if (*ptr >= '0' && *ptr <= '9') {
+ if (ptr == name) {
+ PyErr_Format(PyExc_ValueError, "Invalid member name '%s': "
+ "must not start with a digit", name);
+ return FALSE;
+ }
+ }
+ else if ((*ptr < 'a' || *ptr > 'z') &&
+ (*ptr < 'A' || *ptr > 'Z') && *ptr != '_') {
+ PyErr_Format(PyExc_ValueError, "Invalid member name '%s': "
+ "contains invalid character '%c'", name, *ptr);
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+dbus_bool_t
+dbus_py_validate_interface_name(const char *name)
+{
+ dbus_bool_t dot = FALSE;
+ char last;
+ const char *ptr;
+
+ if (name[0] == '\0') {
+ PyErr_SetString(PyExc_ValueError, "Invalid interface or error name: "
+ "may not be empty");
+ return FALSE;
+ }
+ if (strlen(name) > 255) {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or error name '%s': "
+ "too long (> 255 characters)", name);
+ return FALSE;
+ }
+ last = '\0';
+ for (ptr = name; *ptr; ptr++) {
+ if (*ptr == '.') {
+ dot = TRUE;
+ if (last == '.') {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or "
+ "error name '%s': contains substring '..'", name);
+ return FALSE;
+ }
+ else if (last == '\0') {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or error "
+ "name '%s': must not start with '.'", name);
+ return FALSE;
+ }
+ }
+ else if (*ptr >= '0' && *ptr <= '9') {
+ if (last == '.') {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or error "
+ "name '%s': a digit may not follow '.'", name);
+ return FALSE;
+ }
+ else if (last == '\0') {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or error "
+ "name '%s': must not start with a digit", name);
+ return FALSE;
+ }
+ }
+ else if ((*ptr < 'a' || *ptr > 'z') &&
+ (*ptr < 'A' || *ptr > 'Z') && *ptr != '_') {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or error "
+ "name '%s': contains invalid character '%c'",
+ name, *ptr);
+ return FALSE;
+ }
+ last = *ptr;
+ }
+ if (last == '.') {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or error name "
+ "'%s': must not end with '.'", name);
+ return FALSE;
+ }
+ if (!dot) {
+ PyErr_Format(PyExc_ValueError, "Invalid interface or error name "
+ "'%s': must contain '.'", name);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+
+dbus_bool_t
+dbus_py_validate_object_path(const char *path)
+{
+ const char *ptr;
+
+ if (path[0] != '/') {
+ PyErr_Format(PyExc_ValueError, "Invalid object path '%s': does not "
+ "start with '/'", path);
+ return FALSE;
+ }
+ if (path[1] == '\0') return TRUE;
+ for (ptr = path + 1; *ptr; ptr++) {
+ if (*ptr == '/') {
+ if (ptr[-1] == '/') {
+ PyErr_Format(PyExc_ValueError, "Invalid object path '%s': "
+ "contains substring '//'", path);
+ return FALSE;
+ }
+ }
+ else if ((*ptr < 'a' || *ptr > 'z') &&
+ (*ptr < 'A' || *ptr > 'Z') &&
+ (*ptr < '0' || *ptr > '9') && *ptr != '_') {
+ PyErr_Format(PyExc_ValueError, "Invalid object path '%s': "
+ "contains invalid character '%c'", path, *ptr);
+ return FALSE;
+ }
+ }
+ if (ptr[-1] == '/') {
+ PyErr_Format(PyExc_ValueError, "Invalid object path '%s': ends "
+ "with '/' and is not just '/'", path);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/* vim:set ft=c cino< sw=4 sts=4 et: */
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